Improvement in paper-making machines



UNITED STATES PATENT OFFICE.

s, J.'sTINE, AND GEORGE Ross, oF SAME rnAcE.

IMPROVEMENT IN-PAPER-MAKING lmici-nues.-l

Speciiication forming part of Letters Patent No. 48,347, dated .lune 20,1865.

To all whom it may concern: i

Be it known that I,` JAMES SGANLAN, of

Lebanon, in the county of Lebanon and State of Pennsylvania, have invented ne.;- and useful Improvements on Paper-Makin g Machines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this'specitication, in which- Y Figure 1 is a perspective view of the machine with my additional improvements in place. Fig. 2 is a longitudinal elevation ofthe same, with 'the several beltings employed, the end of the tank and parts of the frame-work shown in Fig. 1 removed7 the better to exhibit other parts. In this'gure is also shown one of a series' of teu steam-cylinders, around which the 'continuous sheet iScarried, dried, andnade topass over to the splitting and cutting machine eniployed. This, bei ngno part ot' my invention, is not shown.

The nature of myinvention consists in adapting the ordinary Fourdrinier'niachine to the manufacture of heavy or light paper-boards from straw, sorghum, or other materials, of a superior quality. This I accomplish by means .of the following 'changes and additions to the machinery:

l U. represents the' Fourdrinier wire-cloth around therollerD. Rollers O B and water-pipe O are shown in their usual position. l however do away with the cross-plank rigidly fixed on top to keep the water back, and employ in place thereof a roller marked A. This 'roller is of the same length (sixty-two inches) of the other rollers, is ten inches in diameter,

is placed in the posi tion'shown, and eii'ectually prevents the water which issues from theperforatedpipe O employed for washin gthe jacket of roller 0 from running back upon the pulp. Thisroller is also self-adjusting by means of a linked rod, S, and lever-arm S and weight R thereon, the rod being connected-with the axis of the roller in its bearing and also with the lever-arm, so as to give it the required amount of pressure and yet adaptitself to the e thickness of the jacket on C, and thus lessening the friction and consequent wear and tear, Y

as wasthe case when the fixed plank was used, as heretofore?, vfor that purpose, which was so destructive to the jacket, as well asi'the wire'- clothbeneath, by 1 eason of its rigid attachment being'unyielding.

My second improvement consistsin the in troduction of a third felt and washing-trough arrangement, never employed prior to my in. vvention. This third felting does away with the roll-cloths ordinarily used, which are expensive and require constant changing, becoming soon clogged up. Over the irstpress-rolls, E F, is a water tank or box, L. This has a reel-like washer, with beaters or arms V revolving in the water fed in by the pipe W.`

There is also a waste-pipe on the opposite side to carry oi' the pulpy washings: This third felt, after being more or less chargedwthparticles of pulp, which is between it and the iirst felt, in is passage through between the first press-rollers E F, passes under Vroller 2 over roller 3, underl roller 4, up to roller 5. This latter is supported by and adjustable inthe racks N on the corners of the wash-box L.

4From 5 the feltin g enters the water within the box, passing between rolls 6 and 7, andfis subjected 'to the beating action of the washerV revolving in the box during its passage between'theimmersed' rolls 8 9, and Abeing thus cleansed and rinsed the felting passes upward through the wringersor rollers J Kto the roller 10, which is also supported on a pair of racks, N: The felt thus cleansed anTd comparatively dry descends to roll 1, where it again covers the compressed pulp as it is fed betweenthe press-rollers F, and performs also the impor tant office of receiving through it the surplus waterin the pulp, or allowing the water pressed out of the pulp to pass upward through it and be drained oli' fromits upper surface (where it comes in contact with the roll 3) in a stream on both sides into a trough. (Not shown.) There is also a pulley, m, with a chain-and weights, M, on the wash-box L, connected with r the washer to `regulate its force or pressure upon the felting, as shown in Fig. 1.-

,The continuous sheet, in its passage from betoi'ore not obtained.

tact with the felting. To obviate this defect andv to give both sides of the sheet a uniform smooth or polished surface, I introduce an additional metallic press-roller, I, placed above and in contact with the roller GlV of the ordinary second pairfas shown, between which the" sheet is made to pass without the intervention ofany felting, and thus receives a finish here- These three improvements I deem novel and highly useful. I also introduce a third blower, T, besides other changes in the working of the machinery, which I do not deem sufficiently important to claim as inventions.

My experience in paper and board makin is extensive, and I am not aware that paperboards out of straw or any other material have ever been attempted by the. use of the Fourdrinier Wire-cloth apron, nor, indeed, can be, without an additional felting and cleansing apparatus arranged and operating substantially as mine. I am aware that a couchingfelt is. used in combination with the Fourdrinierwire-cl,oth apron, so arranged as to couch the paper from the wire-cloth by direct contactof the perforated cylinder, which and roller Dsupport the wire-'cloth and couching-felt respectively directly opposite their point Vof contact, but such, nora perforated roll'combined with the felts where the water is pressed from the web vbetween the rollers and runs on the lfelts instead of en the web, passing into a perforated roller, I do not claim.

What I claim as my invention, and desire to secure by`Letters Patent, is-

1. The yeouching-roller A, with its lever attachmentS S R, in combination with the Fourdrinier wire-cloth apron U, situated and operating in the manner and for the purpose specified.

washboxL, its washers V, racks N, and rollers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10,v arranged yand operating substantially as set forth.

3. The'polishing-roller I in the second press in combination with the press-rollers G H.

4. The `applicati on of the Fourdrinier machine for making paperboards out of straw, sorghum, or other materials, incombination with my third felt and felt-washer arrangement, as described.

JAMES SCANLAN.

Witnesses: y

JOHN FARRELL,

WILLIAM G. BORGNER.

2. The third felt in combination with the I 

